WordPress · talldan · Aug 30, 2022 · Aug 16, 2022 · Aug 24, 2022 · Aug 25, 2022
@@ -186,7 +186,8 @@ function BlockPopoverInbetween( {
 				'block-editor-block-popover__inbetween',
 				props.className
 			) }
-			__unstableForcePosition
+			resize={ false }
+			flip={ false }
 		>
 			<div style={ style }>{ children }</div>
 		</Popover>

@@ -66,7 +66,8 @@ function BlockPopover(
 			// Render in the old slot if needed for backward compatibility,
 			// otherwise render in place (not in the default popover slot).
 			__unstableSlotName={ __unstablePopoverSlot || null }
-			__unstableForcePosition
+			resize={ false }
+			flip={ false }
 			__unstableShift
 			{ ...props }
 			className={ classnames(

@@ -14,14 +14,19 @@ import { __unstableUseBlockElement as useBlockElement } from '../block-list/use-
 // By default the toolbar sets the `shift` prop. If the user scrolls the page
 // down the toolbar will stay on screen by adopting a sticky position at the
 // top of the viewport.
-const DEFAULT_PROPS = { __unstableForcePosition: true, __unstableShift: true };
+const DEFAULT_PROPS = {
+	resize: false,
+	flip: false,
+	__unstableShift: true,
+};
 
 // When there isn't enough height between the top of the block and the editor
 // canvas, the `shift` prop is set to `false`, as it will cause the block to be
-// obscured. The `flip` behavior is enabled (by setting `forcePosition` to
-// `false`), which positions the toolbar below the block.
+// obscured. The `flip` behavior is enabled, which positions the toolbar below
+// the block.
 const RESTRICTED_HEIGHT_PROPS = {
-	__unstableForcePosition: false,
+	resize: false,
+	flip: true,
 	__unstableShift: false,
 };
 

@@ -43,6 +43,7 @@
 -   `FormTokenField`: Refactor away from `_.difference()` ([#43224](https://github.com/WordPress/gutenberg/pull/43224/)).
 -   `Autocomplete`: use `KeyboardEvent.code` instead of `KeyboardEvent.keyCode` ([#43432](https://github.com/WordPress/gutenberg/pull/43432/)).
 -   `ConfirmDialog`: replace (almost) every usage of `fireEvent` with `@testing-library/user-event`  ([#43429](https://github.com/WordPress/gutenberg/pull/43429/)).
+-   `Popover`: Introduce new `flip` and `resize` props ([#43546](https://github.com/WordPress/gutenberg/pull/43546/)).
 
 ### Internal
 
@@ -83,6 +84,7 @@
 ### Experimental
 
 -   `FormTokenField`: add `__experimentalAutoSelectFirstMatch` prop to auto select the first matching suggestion on typing ([#42527](https://github.com/WordPress/gutenberg/pull/42527/)).
+-   `Popover`: Deprecate `__unstableForcePosition`, now replaced by new `flip` and `resize` props ([#43546](https://github.com/WordPress/gutenberg/pull/43546/)).
 
 ## 19.17.0 (2022-08-10)
 

@@ -71,6 +71,26 @@ Each of these base placements has an alignment in the form -start and -end. For
 -   Required: No
 -   Default: `"bottom-start"`
 
+### flip
+
+Specifies whether the `Popover` should flip across its axis if there isn't space for it in the normal placement.
+
+When the using a 'top' placement, the `Popover` will switch to a 'bottom' placement. When using a 'left' placement, the popover will switch to a 'right' placement.
+
+The `Popover` will retain its alignment of 'start' or 'end' when flipping.
+
+-   Type: `Boolean`
+-   Required: No
+-   Default: `true`
+
+### resize
+
+Adjusts the height of the `Popover` to prevent overflow.
+
+-   Type: `Boolean`
+-   Required: No
+-   Default: `true`
+
 ### offset
 
 The distance (in pixels) between the anchor and popover.

@@ -5,7 +5,7 @@
 import classnames from 'classnames';
 import {
 	useFloating,
-	flip,
+	flip as flipMiddleware,
 	shift,
 	autoUpdate,
 	arrow,
@@ -143,8 +143,10 @@ const Popover = (
 		expandOnMobile,
 		onFocusOutside,
 		__unstableSlotName = SLOT_NAME,
-		__unstableForcePosition = false,
+		flip = true,
+		resize = true,
 		__unstableShift = false,
+		__unstableForcePosition,
 		...contentProps
 	},
 	forwardedRef
@@ -156,6 +158,19 @@ const Popover = (
 		} );
 	}
 
+	if ( __unstableForcePosition !== undefined ) {
+		deprecated( '__unstableForcePosition prop in Popover component', {
+			since: '6.1',
+			version: '6.3',
+			alternative: '`flip={ false }` and  `resize={ false }`',
+		} );
+
+		// Back-compat, set the `flip` and `resize` props
+		// to `false` to replicate `__unstableForcePosition`.
+		flip = ! __unstableForcePosition;
+		resize = ! __unstableForcePosition;
+	}
+
 	const arrowRef = useRef( null );
 	const anchorRefFallback = useRef( null );
 
@@ -232,10 +247,9 @@ const Popover = (
 				crossAxis: frameOffsetRef.current[ crossAxis ],
 			};
 		} ),
-		__unstableForcePosition ? undefined : flip(),
-		__unstableForcePosition
-			? undefined
-			: size( {
+		flip ? flipMiddleware() : undefined,
+		resize
+			? size( {
 					apply( sizeProps ) {
 						const { availableHeight } = sizeProps;
 						if ( ! refs.floating.current ) return;
@@ -245,7 +259,8 @@ const Popover = (
 							overflow: 'auto',
 						} );
 					},
-			  } ),
+			  } )
+			: undefined,
 		__unstableShift
 			? shift( {
 					crossAxis: true,

@@ -73,7 +73,8 @@ export default {
 			options: AVAILABLE_POSITIONS,
 		},
 		__unstableSlotName: { control: { type: null } },
-		__unstableForcePosition: { control: { type: 'boolean' } },
+		resize: { control: { type: 'boolean' } },
+		flip: { control: { type: 'boolean' } },
 		__unstableShift: { control: { type: 'boolean' } },
 	},
 };
@@ -180,7 +181,8 @@ AllPlacements.args = {
 	),
 	noArrow: false,
 	offset: 10,
-	__unstableForcePosition: true,
+	resize: false,
+	flip: false,
 };
 
 export const DynamicHeight = ( { children, ...args } ) => {

diff --git a/packages/widgets/src/blocks/legacy-widget/edit/form.js b/packages/widgets/src/blocks/legacy-widget/edit/form.js
@@ -105,7 +105,8 @@ export default function Form( {
 					focusOnMount={ false }
 					placement="right"
 					offset={ 32 }
-					__unstableForcePosition
+					resize={ false }
+					flip={ false }
 					__unstableShift
 				>
 					<div